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Download Grml 2026.09

Get the current stable release here. Read the Release Notes.

Download the Grml flavour you need, then write it to a CD-ROM/DVD or an empty USB stick.

Alternate downloads

Daily images
Older releases
Source code (one tar for both architectures)

Netboot packages:
64-bit PC 64-bit ARM
Boot from USB key

Just dd(1) the downloaded ISO to an empty USB key!

dd bs=4M status=progress conv=fdatasync if=grml-full-2026.09-amd64.iso of=/dev/USB_KEY

grml2usb users: use version 0.20.14 or newer.

Troubleshooting

Boot option guide



Verify your download

Please verify all downloads!

Alongside the actual download files (ISO, netboot, sources), the Grml mirrors publish the extra files SHA256SUMS-2026.09 and SHA256SUMS-2026.09.gpg.
The SHA256SUMS-2026.09 file contains checksums for all available release files.
The SHA256SUMS-2026.09.gpg file provides the GnuPG signature for that file.
Once you have SHA256SUMS-2026.09 and SHA256SUMS-2026.09.gpg in the same directory as your Grml downloads, verify the checksum file via:

gpg --keyid-format long --verify SHA256SUMS-2026.09.gpg SHA256SUMS-2026.09

If you don't have our GnuPG signing key (key ID 0x96A87872B7EA3737, fingerprint 33CC B136 401A FEC8 43A3 8763 96A8 7872 B7EA 3737), run:

gpg --keyid-format long --keyserver hkps://keys.openpgp.org --recv-keys 0x96A87872B7EA3737

Finally verify the checksum of your Grml downloads, via:

sha256sum --ignore-missing -c SHA256SUMS-2026.09

Source code

The Grml team uses Git for managing software and packages. The repositories are available online at GitHub.